Here are some randomly selected joke topics
Fish
Why are fish so smart?
Because they like to swim around in schools.
Blondes
Did you hear about the blonde that threw away her weight loss video because she noticed that the people on the video were not losing weight either?
Dumb
Your mumma is so dumb she took a ruler 2 bed 2 c how long she slept!
Batman
My girlfriend said she's leaving me because I'm always talking about Batman.
What a joker she is.
Owls
What do owls celebrate at the end of October?
Owl-oween.
Cowboys
Did you hear about this cowboy whose dog fell over a cliff?
He said, 'Dawg gone.'
Barman
Two fonts walk into a bar. The barman says to them, "Get out. We don't serve your type in here."
Politicians
A politician is someone who shakes your hand before an election and your confidence after it.
Chicken
Diner: Waiter, the chicken you served me is nothing but skin and bones.
Waiter: Just a minute, sir. I'll bring you some feathers.